/*******************************************************************************
 *     ___                  _   ____  ____
 *    / _ \ _   _  ___  ___| |_|  _ \| __ )
 *   | | | | | | |/ _ \/ __| __| | | |  _ \
 *   | |_| | |_| |  __/\__ \ |_| |_| | |_) |
 *    \__\_\\__,_|\___||___/\__|____/|____/
 *
 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2022 QuestDB
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 ******************************************************************************/

package io.questdb.cutlass.pgwire;

import io.questdb.cairo.CairoEngine;
import io.questdb.griffin.FunctionFactoryCache;
import io.questdb.griffin.SqlCompiler;
import io.questdb.network.PeerDisconnectedException;
import io.questdb.network.PeerIsSlowToReadException;
import io.questdb.network.PeerIsSlowToWriteException;
import io.questdb.std.AssociativeCache;
import io.questdb.std.Misc;
import io.questdb.std.WeakAutoClosableObjectPool;

import java.io.Closeable;

public class PGJobContext implements Closeable {

    private final SqlCompiler compiler;
    private final AssociativeCache<TypesAndSelect> selectAndTypesCache;
    private final WeakAutoClosableObjectPool<TypesAndSelect> selectAndTypesPool;

    public PGJobContext(PGWireConfiguration configuration, CairoEngine engine, FunctionFactoryCache functionFactoryCache) {
        this.compiler = new SqlCompiler(engine, functionFactoryCache);
        this.selectAndTypesCache = new AssociativeCache<>(
                configuration.getFactoryCacheColumnCount(),
                configuration.getFactoryCacheRowCount()
        );
        this.selectAndTypesPool = new WeakAutoClosableObjectPool<>(
                TypesAndSelect::new,
                configuration.getFactoryCacheColumnCount() * configuration.getFactoryCacheRowCount()
        );
    }

    @Override
    public void close() {
        Misc.free(compiler);
        Misc.free(selectAndTypesCache);
    }

    public void handleClientOperation(PGConnectionContext context, int operation)
            throws PeerIsSlowToWriteException,
            PeerIsSlowToReadException,
            PeerDisconnectedException,
            BadProtocolException {
        context.handleClientOperation(compiler, selectAndTypesCache, selectAndTypesPool, operation);
    }
}
